RT9266B

RT9266B Tiny Package, High Efficiency, Step-Up DC/DC Converter General Description The RT9266B is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents. It operates in stable waveforms without external compensation. The low start-up input voltage below 1V makes RT9266B suitable for 1 to 4 battery cells applications with a 500mA internal switch. The 550kHz high switching rate minimized the size of external components. Besides, the 25μA low quiescent current together with high efficiency maintains long battery lifetime. Ordering Information RT9266B Package Type E : SOT-23-6 Lead Plating System P : Pb Free G : Green (Halogen Free and Pb Free) Note : Richtek products are : ` RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. ` Suitable for use in SnPb or Pb-free soldering processes. Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area. Features z 1V Low Start-up Input Voltage at 1mA Load z 25μA Quiescent (Switch-off) Supply Current z Zero Shutdown Mode Supply Current z 90% Efficiency z 550kHz Switching Frequency at 3.3V VDD z Providing Flexibility for Using Internal and External Power Switches z Small SOT-23-6 Package z ...